Any rumors about a D3+ or L4 floating around?
they're using those themselves at this point. check back end of winter 2018 and lets see if they upgrade their in house stock and release those to the public.
If they were using these themselves shouldn't the difficulties be much higher? Since we've noticed big influx on ltc difficulty just with L3+ powered on by bitmain before shipping.
Yep. It's fairly easy to show that Bitmain has not yet started mining with the D3 in any significant quantities. The global hashrate has certainly increased, but not by thousands of D3s worth.
I think you are right. Might be a limited batch 1 to play with and the Oct and Nov batches you will prob see a hash rate jump before those batches releases. We will see as we are all watching the x11 rate daily now I'm assuming